package com.lx.shiro.util;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

import lombok.extern.slf4j.Slf4j;

/**
 * 解决Filter中注入Bean失败 Created by hoaven on 2018/5/30.
 */
@Slf4j
@Component
public class SpringUtils implements ApplicationContextAware {

	private static ApplicationContext applicationContext;

	@Override
	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
		if (SpringUtils.applicationContext == null) {
			SpringUtils.applicationContext = applicationContext;
		}

	}

	public static ApplicationContext getApplicationContext() {
		return applicationContext;
	}

	// 根据name
	public static Object getBean(String name) {
		return getApplicationContext().getBean(name);
	}

	// 根据类型
	public static <T> T getBean(Class<T> clazz) {
		return getApplicationContext().getBean(clazz);
	}

	public static <T> T getBean(String name, Class<T> clazz) {
		return getApplicationContext().getBean(name, clazz);
	}

}